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Question

Let f(x)= (x/(x^2+11))

Find (a) the intervals on which ff is increasing,

(b) the intervals on which ff is decreasing,

(c) the open intervals on which ff is concave up,

(d) the open intervals on which ff is concave down, and

(e) the xx-coordinates of all inflection points.

(a) f(x) is increasing on the interval(s) ___

(b) f(x) is decreasing on the interval(s) ___

(c) f(x) is concave up on the open interval(s) ___

(d) f(x) is concave down on the open interval(s) ___

(e) the x coordinate(s) of the points of inflection are ___

Answer 1

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